Distinguish between:
$(a)$ Upright and inverted pyramid
$(b)$ Food chain and Food web

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(N/A) Upright and inverted pyramid
Upright pyramid Inverted pyramid
$1$. The pyramid of energy is always upright. $1$. The pyramid of biomass and the pyramid of numbers can be inverted.
$2$. In an upright pyramid,the number and biomass of organisms at the producer level is the highest,decreasing at each successive trophic level. $2$. In an inverted pyramid,the number and biomass of organisms at the producer level is the lowest,increasing at each successive trophic level.

$(b)$ Food chain and Food web
Food chain Food web
$1$. It is a single linear sequence of organisms showing the flow of energy. $1$. It is a complex network of many interconnected food chains.
$2$. Members at higher trophic levels feed on specific,limited types of organisms. $2$. Organisms have multiple alternative food sources,providing greater stability.

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